yashsingh1/xdaforums huggingface dataset:
[Nexus 7 General] Kuchar09:
If you are already on USBROM there is no need to do a clean flash.

Download USBROM & the latest GAPPS which is 4.2.2 I believe.

Not sure if your using TWRP recovery or not but just go into recovery and install USBROM then GAPPS. Then just clear cache and dalvik cache after install and restart your tablet. Should be as easy as that! No need to mess with kernals and what not everything needed is in the USBROM download.
[Nexus 7 General] MetalMan2:
Like I mentioned on the last page, you should only install 2 files:

-USB ROM

-Gapps

The USB ROM install file has its own kernel already built-in. And as kuchar mentioned, you don't need to wipe if you already have USB ROM installed.
[Nexus 7 General] jeb192004:
Got a lot of useful info from here while working on mine. Just thought I'd share my project with with you guys. Hope that's ok...

http://xdaforums.com/showthread.php?t=2384309
[Nexus 7 General] Dr4g0n:
i recived my Febon 100 and it works "great". plug and play and it works but only one problem.

when i disconnect the power from n7 and usbhub / febon 100 and replugt it than sometimes it is not correctly mountet.

i must restart my tablet or it crashed and reboots automaticly.

i setup tasker for

"mv /dev/video1 /dev/video0"

"chown 666 /dev/video0"

befor i start the webcam app.

maybe a init problem from android?

but the febon 100 works better and faster than the easycap =)
[Nexus 7 General] yevgenydev:
Currently I am looking into getting rid of my silly headunit + Nexus 7 setup. And free up a lot of room for all of the goodies I have tucked away.

I will probably just run DAC -> Amplified setup which I currently have. Except the DAC is outputting to the auxuliary port of my Headunit.

You seem to be the only one that has bypassed a headunit completely so I have a few questions.

How did you handle the blue wire for an amplifier that requires a "switch" functionality? Or is this done manually?

I might be a noob in audio, but I am perfectly fine with my current pre-amp in my head unit shooting out 50watts - maybe i'll find a simple amp to replicate this.

I cant seem to find any wiring diagrams. But this should be as simple as me taking out my head unit. Wiring all my speakers to the amp. Setting up a DAC to Amp cable. a 12v cable straight to the battery terminal. Then figure out a switch system for the Ignition?
[Nexus 7 General] Tyler 3:
Hey Kuchar great install! Very sweet, I hope mine can eventually become this nice.

Could you explain how you hooked up charging circuit? I'm not super experienced with electrical wiring and I just want to make sure I do everything correctly. I want to keep it all behind the dash and have a "always on" switch in my dash to charge the tablet when the car is off. I have an idea for which wires I want to tap into but I'm stumped on how it will all fit together. Also could you explain the purpose of the diodes?

Thanks!
[Nexus 7 General] jeb192004:
I believe over on my thread you mentioned having a Silverado. If it's the same body style as mine and your planning on using the ignition wire from the bcm your gonna want to use a relay and a constant power source. Wiring the ignition wire directly to the tablet caused problem for me. Started messing up the trucks computer.

Basically you'll have a 12v constant goin to your relay, a wire goin out to your charger for the tablet, and the ignition wire goin to the relay, but only to use as a switch to turn the relay on and off.
[Nexus 7 General] Benjamin999:
Were you able to get this to work? If so, how? I've been searching to figure out how to use my factory antenna in my car w/ the DVB-T that I have, cannot find much out there. My car actually has 2 plugs running to my antenna.....not exactly sure what each is for as most cars I've worked on in the past just have the 1.
[Nexus 7 General] Izzmeister1978:
Thank you MetalMan, tried what you guys suggested.....installed factory kernel and then usbrom with GAPPS. I have ran it for a few days now....same issue. It takes longer for the memory to be used up but it happens. After a few days the N7 starts using up more and more RAM until it just becomes unresponsive or crashes. I don't know what else to do....on the other hand....I want to get an N& 2013 and put it in its place instead.....do u think usbrom will be available for it soon? Just a thought....I would rather get rid of the current N7 and just run the new one in the car....the screen is gorgeous.....maybe with 2gb of ram my issues would be solved?

Thanks
[Nexus 7 General] pewterformula:
I too would like to put a N7 2013 in my car, but I'm holding out to see if/when someone way smarter than me develops a usbrom for it.
[Nexus 7 General] :
Nice!!!!

Great install, looks super clean!!! :good:
[Nexus 7 General] bwalz:
One of the best in dash installs I've seen. The tablet is perfect, good job :good:
[Nexus 7 General] freddy0872:
This is a great job!

Nice work on the install! Nice clean and professional!
[Nexus 7 General] Izzmeister1978:
Alright Metalman and Kuchar, I am still having RAM concumption issues...here is the Kernel and all the other info....I installed the N7 factory Kernel via a factory reset then did the USBROM install and GAPPS only....here is the info....is this correct or did I do something wrong?

Kernel Version

3.1.10-g00a999f

Timur-USBhost-FI-2013-07-12@hexa #1

Fri Jul 12 12:07:33 CEST 2013

CyaonogenMod version

10.1-20130712-USBROM-grouper

Build number

cm_grouper-userdebug 4.2.2 JDQ39E eng.dave.20130712.120244 test-keys

Shouldn't it reflect the factory kernel? What did I do wrong here if anything....Thanks Guys....any word on USBROM for N7 2013? That would be a nice dash piece
[Nexus 7 General] MetalMan2:
What you have shown there is correct. You should NOT be seeing the factory kernel. USB ROM basically has a newer version of Timur's FI kernel incorporated into the ROM install file ZIP that automatically installs (without any extra input from you).

Also you don't need to install the factory kernel. If I may ask, why did you do that? (it doesn't matter, because the USB ROM install file overwrites any kernel already installed).

Not sure about your RAM consumption. Generally on my N7, with all apps closed and using Advanced Task Killer to kill some apps, I see 400-500MB free RAM.

Only thing I can think of is that you're not doing a proper wipe of the system prior to installing USB ROM. Not doing so can often have strange effects.

Timur has stated in his RootzWiki thread that he doesn't have plans to do a new kernel/ROM for the 2013 N7 due to time... apparently it could take weeks or more to create it (new processor = everything new). Also I'm not sure if CyanogenMod has anything for the 2013 N7, which Timur would probably use to base his work off of anyways.
[Nexus 7 General] daclothe:
the first nightly dropped yesterday.

http://get.cm/?device=flo
[Nexus 7 General] Kuchar09:
Holy fricken PMs!!!!

I finally changed my setting so I'm alerted when I get a PM. I believe I replied to all of the PMs, send me another one if you haven't received a response. Sorry for some of the extremely late replies!
[Nexus 7 General] timmgrimm:
nexus 7 and install equipment

I never gave you guys an update on my build from earlier postings and questions. I got home from my deployment and first thing i did was install this in my vehicle. So I had absolutely no problems and it was awesome. Except that i wasn't able to get my local NPR radio station on my sdr but that was just a minor annoyance. No biggie. The important thing was that i was rocking a fully functional nexus 7 as my stereo.

So since then I sold my vehicle for a Ford with sync that I can't bring myself to rip out. (Deployment money was burning a hole in my pocket. ) Now, I have all this stuff sitting around with no use. I know xda has no classifieds (which I find pretty weird) and the scope of this stuff is beyond swappa, I thought I'd post it here so that someone interested in following this thread could benefit not to mention you guys would have a pretty good understanding of what it is Im offering. I just spent an hour posting this on craiglist add so I'm just going to link to it below. The price is 300 plus 10 for shipping conus. Ill cover any extra it may cost for shipping. I hope you guys take advantage of the work I put in aqquiring and creating this stuff. (The external power cable for the hub. Thats one of the things that worried me the most going in. Not to mention the otg cable that I swapped the straight micro usb for the right angle one.) Well just contact me on one of the methods in the CL ad, because I don't get to get on here much. Thanks everyone for looking.

Tim

Oh and the better off the two dacs is a hifimediy with the sabre chipset. One of the best chipsets on the market.

http://cosprings.craigslist.org/ele/4028333461.html
[Nexus 7 General] timmgrimm:
So after having it posted for less then twelve hours I delivered my nexus 7 to its new owner. Im blown away by how many inquiries I received for it in such a short period. (5) I really want to thank everyone for the help and inspiration. You truly made this whole thing too easy. They should sticky this thread, because this is a step by step for how to install awesome. Thank you Kuchar09
[Nexus 7 General] Kuchar09:
Thanks man glad my information actually helped someone. Once you get sick of that ford sync maybe the Nexus 7 (2) will be ready for a car install!!!! ;)

I really should probably go through this thread and find all the important information and common questions and update my first post. I think I'll try and do that once I have the easycap backup cam working perfect.
[Nexus 7 General] digitallure:
This is a slick setup! Very cool!:good:
[Nexus 7 General] A7788:
Thanks for the response mate, appreciate the info :)
[Nexus 7 General] evil804:
i read the whole thing start to finish and i regret nothing. once i get my new car, (looking for an 06-08 6 speed acura TSX) ill start flashing the rom and testing everything out on my N7. I have yet to flash roms/root/etc... yet but i doubt ill have any issues considering the knowledge base XDA provides on such matters.
[Nexus 7 General] irectus:
reverse camera and app

hey guys.

first i apologize if its already been answered, but i do not have time to read 299 pages... so i too have a nexus 7 (3g tilapia edition) installed in my car. I am trying to wrap my mind around getting a reverse camera going. what i don't get is how the Nexus 7 tablet knows to launch the webcam app when the car is put into reverse. i have the joycon EXR controller installed so i could hook the camera up to that, or to a hub going to the tablet, either way. and i read somewhere that we should be using the "forked" app called "Simplewebcam"...... but my question still stands as to the app launching when the car is put into reverse.

any help or advice would be great. thx!

matt
[Nexus 7 General] rigoletto670:
Good work.

Looks fine man

:good:
[Nexus 7 General] Kuchar09:
OK...

First off not sure if your using a webcam as your backup cam but if you are ditch it!!!! Get yourself a Easycap with a STK1160 chipset. You need to email the seller and make sure it has this chipset or else it will not work!! Then you just need to get a normal backup cam to connect to the easycap.

Once you get that all setup head over here for instructions on how to install the drivers for the easycap and also for the carcam app. With this app you can set it to automatically open when in reverse since the app sense an input from the backup cam when in reverse.

This is by far the best option for a backup cam in my opinion.

Thanks man!!

I'm going to start updating my OP and try to get all the important information there over the weekend.
[Nexus 7 General] f_speed:
Excellent work!!! I love it
[Nexus 7 General] irectus:
uhm, just curious as to why you recommend going that route over a webcam. I was going to go to futureshop tomorrow and pick up a Logitech C525 (compatible with SimpleWebCam app). it gives 720p and i would hook it up through the joycon. But i would connect my reverse lights to channel B and have a short button press (less than a second which is me going from Park over Reverse to Drive) do nothing and a long button press (longer than 1 second in Reverse) to open up SimpleWebCam app. only downfall is either you cant use channel A or B for reverse lights on the joycon controller or there's a power drain/shortage for when the webcam is connected to the joycon controller (either always stays on for some reason and eventually, slowly, drains battery or just not enough power being supplied to the camera).

thanks for your feedback and look forward to your post back regarding this one.
[Nexus 7 General] TampaChris:
Is there any reason why you cannot use two of these amazon(dotcom) /DROK-Converter-Connector-Adapter-Charger/dp/B00D5Q1YZ6/ref=pd_sim_pc_6 I cannot post links

One for the otg on a constant, perhaps with a toggle switch. And one for an accessory power on the powered USB hub? Then you can tap right into the fuse box and have it all fused up.
[Nexus 7 General] zanix:
http://www.amazon.com/Retailstore-LM2596-Adjustable-Supply-Converter/dp/B009HPB1OI/ (comes in a set of 2)

I use 2 of these hooked up to a female USB plug, one connected to ignition power, the other to constant power.

One ignition powered module powers my tablet and a USB hub, the constant powered module powers a USB hub and my phone's inductive charger.

The downside of these compared to the one you linked is that you have to adjust the pot. and measure the output voltage to get it to 5v.
[Nexus 7 General] TampaChris:
Hey thanks. I actually ordered my tablet tonight, two of those USB 5v jobbies, and bunch of fuse box tappers. Going to order the rest of the stuff this week. I am not all for the back up cam and not even an amp. But I may have to get an amp as my 2013 Altima, the Nissan amp has no RCAs. I am going to use this amazon Dot com/Tomtom-Mkii-Bluetooth-Receiver-Worldwide/dp/B007B2QDFQ/ref=pd_sim_sbs_e_5 for my GPS. There is an app in Play that allows you to use one of these via bluetooth. I am not much for taking my tablet apart.... I will put up pics as I progress and a parts list to give other guys ideas they may want to use.

Ha. Just had an idea to put a couple of screens in the head rests with a chromecast.....
[Nexus 7 General] zanix:
Unless I'm wrong, I think CM10 lets you pick an external bluetooth module if it's plugged in
[Nexus 7 General] dcmtnbkr:
Do you have a diagram of how you would wire these up? For the life of me i cannot find a dc charger that will charge the n7 fast enough to not have battery drain when using nav and bluetooth.
[Nexus 7 General] zanix:
My whole setup is based on the OP's post

The image shows how I wired a LM2596 to a USB female socket.

I have 2 of these, one is connected to the ignition power, the other is hooked up to constant power.

Then I have the power side of the OTG cable pluged into the LM2596 with ignition power, the ignition power is split off after the LM2596 and before the USB socket and powers one USB hub.

The constant power LM2596 is connected to another hub and to my phone for charging.
[Nexus 7 General] dcmtnbkr:
Perfect, thanks for the info! Just out of curiosity, what usb hubs did you use? Also, where did you pick up the usb female ends?
[Nexus 7 General] zanix:
I used the Amazon basics USB hub, I broke one so I'm using another old hub I had lying around. Not sre the brand since it's not printed anywhere.

The female USB ends were harvested from USB extension cables
[Nexus 7 General] bass0324:
I just installed my n7 in my 08 wrx with dvb-t, e60 usb DAC, and 32gb SD card. Also used an old single din stereo installed under passenger seat to power speakers and subwoofer. All in all turned out great except FM reception on dvb-t dongle is pretty terrible.
[Nexus 7 General] Merkoen:
Hey all.

Very nice installs you guys have. :laugh::good:

Here's mine:

That's my Galaxy Tab 2 that i have had for 8 months or so..

Just ordered myself a Nexus (2013), and gonna do the same as many of you did with the joycon etc.

Lots of good info in here :)
[Nexus 7 General] romeroro:
.

very good I have thought to do the same a greeting
[Nexus 7 General] dcmtnbkr:
What do you have on each hub? Any reason you have one always receiving power? Also, did you put these inside a case or project box of some sort?
[Nexus 7 General] zanix:
I have a USB DAC and a DVB-T tuner on the constant powered hub and a Joycon Exr Steering Wheel Controler on the ignition powered hub.

I tried to run the DAC and the DVB-T on the ignition powered hub, but they would not run again when the tablet and the hub lost power. I ended up having to reboot the tablet to get them recognized again.

Both power converters are inside of a metal box, which is inside of a bigger plastic project box. Pic attached.

The metal boxes I used are from the ground loop isolators that came with the amp I bought for my door speakers http://www.amazon.com/gp/product/B003VVYL46/ (you can even see a couple of my old install photos)

I dismantled the 2 isolators and merged them onto one breadboard and put them back into one of the metal boxes.

That left me the other box to put the power converters in.
[Nexus 7 General] dcmtnbkr:
Very nice. Sorry for all the questions, but i really appreciate the help. Is this the hub you used?

http://www.amazon.com/AmazonBasics-...e=UTF8&qid=1380939923&sr=8-2&keywords=usb+hub

Right now, i sometimes have issues with the dac and usb drive coming back on, but not often.
[Nexus 7 General] zanix:
Yep
[Nexus 7 General] dcmtnbkr:
What do you have your output voltage at?
[Nexus 7 General] zanix:
As close to 5.1v as I can get.

I also measured it when it was under load and it stayed at 5.0v or so
[Nexus 7 General] dcmtnbkr:
Hey, the 2 thick black cables coming from the hubs, are those the cables that are permanent on the hub only modified? Again, thanks for all the help.
[Nexus 7 General] zanix:
Yes, those are the permanent USB cables from the hubs. I did modify them where they connect to the hub circuit board. I disconnected the red (+5v) and black(-) wires and then I connected the red and black wires from the voltage converters. It has been suggested that you leave the black wire connected from the USB cable, but I did not.
[Nexus 7 General] Goose17:
Nexus 7 2 Install

Had my installer set this up for me in my 4Runner:

Can't figure out how to get rid of the annoying hiss sound when the tablet sound is run through the AUX and there is power running to it at the same. Can anyone help? Besides that, a sweet set up.
[Nexus 7 General] dilldoe:
there are few ways to get rid of the hiss.

get a better audio cable that's shielded.

wrap your cable around a ferrite core

set the aux range to low if you can on your head unit
[Nexus 7 General] dcmtnbkr:
Do you remember how you took the hub apart?
[Nexus 7 General] zanix:
Yeah, just carefully pried them apart
[Nexus 7 General] zanix:
I had noise on the stereo's ignition and constant power lines so I ran a new power line to the distribution box to see if I could get clean power...nope, but it was less noisy.

I added this to quiet it more

http://www.amazon.com/gp/product/B0007LCKZA/

As for ignition power, it was still too noisy to power my tablet and I didn't want to buy 2 of those. I ended up using a relay that was activated by the stereo ignition wire to which then allowed me to use the constant power wire to power the voltage converters.
[Nexus 7 General] deromka:
Some problem with carcam

Hi All,

I have the following issue:

I've connected the laptop to easycap (connected to nexus) and streaming laptop's screen to it. Carcam automatically started and shows laptop's screen (I even see mouse moves)

On the other hand, I wanted to test the stream from car camera and connected the car camera RCA out to easycap (connected to laptop). I successfully see the live stream from car camera.

BUT when I connect the car camera RCA out to easycap (connected to nexus), I do not see any video, only a black screen, though sometimes (really seldom) I see some badly corrupted static image from camera...

What could be the problem?

May be the signal from the camera is so weak that the nexus is unable properly showing it?
[Nexus 7 General] xdafoundingmember:
Is it easycap uvc Compatible m
[Nexus 7 General] xdafoundingmember:
I bought a generic radical and it didn't work. .. you need a uvc Compatible video grabber, I used the felon 100 it's worked awesome. .. just email Andy zenghster
[Nexus 7 General] dcmtnbkr:
Can anybody actually using this camera method post some installation instructions? I have no idea what they are talking about over in that thread and according the the first post, timur's kernal isnt even supported.
[Nexus 7 General] xdafoundingmember:
It works. On timers rom
[Nexus 7 General] lepapirriky:
Does anybody know of they are making the usb rom for the new nexus 7?
[Nexus 7 General] that_kid:
They were going to create one but I hear it was canceled due to low number of backers
[Nexus 7 General] lepapirriky:
Thats very unfortunate...this rom is the boom!! Specially for people like us, car enthusiast.
[Nexus 7 General] dcmtnbkr:
Eh, for some devs it's not about the money, for others it is. Can't blame em. Honestly though, the 2012 is a perfectly capable machine for a dash install and it's cheaper to get a hold of, might as well just use it rather than buy 2 2013's (one for everyday use and one for your car) Timur's usb rom is solid, he did a great job with it and spent months developing it.
[Nexus 7 General] _crue_:
GJ, I also start my own project :) :good::good::good::good::good:

after read a few topics, yours and similar.

but ))) stuck ))) with a frame for nexus, it has the same size as stock frame in my car, so it's a bit complicated )))

I'm looking for solutions
[Nexus 7 General] lepapirriky:
Well definetely I would rather own the first gen because there is more things develop for the old but eventually people will start using more the newer one and developer will stop caring about the old one. I for sure would love to buy another 32gb on gamestop but I was too late for the party.
[Nexus 7 General] devinpitcher:
So I setup the latest version of Timurs USB Rom and I have my USB OTG / charge cable and everything works, but after setting up my Joycon EXR, I cannot get it to do anything. I get a notification to set the layout or something, but I can't seem to enable the Joycon as a keyboard or anything. Any ideas?
[Nexus 7 General] devinpitcher:
Okay, I figured out what's going on, but I don't know what to do now. I've tried every setting.

When I connect it to my laptop, all the buttons work, and the little line that shows the current resistance is hovering to the right. Well, one of my buttons will drop it to zero, or to the full left. Well, I have mapped a key in Android to that to turn the volume down, and when I plug it into the N7, it keeps dropping the volume. It's stuck on zeroing it out. I unplug the switch and it still stays at zero, but if I remove the wire from the joycon, it stops. Seems like they joycon is incorrectly interpreting that channel is off. (It's the same effect as me shutting Channel A off in Joycon Explorer). What should I do?